Perl Programming Language

FAQ 8.28 How can I call backticks without shell processing?

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8.28: How can I call backticks without shell processing?

This is a bit tricky. You can't simply write the command like this:

@ok = `grep @opts '$search_string' @filenames`;

As of Perl 5.8.0, you can use open() with multiple arguments. Just like the list forms of system() and exec(), no shell escapes happen.

Just as with system(), no shell escapes happen when you exec() a list. Further examples of this can be found in "Safe Pipe Opens" in perlipc.

Note that if you're use Microsoft, no solution to this vexing issue is even possible. Even if Perl were to emulate fork(), you'd still be stuck, because Microsoft does not have a argc/argv-style API.

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> Note that if you're use Microsoft, no solution to this vexing issue is > even possible. Even if Perl were to emulate fork(), you'd still be > stuck, because Microsoft does not have a argc/argv-style API.

>> Note that if you're use Microsoft, no solution to this vexing issue is >> even possible. Even if Perl were to emulate fork(), you'd still be >> stuck, because Microsoft does not have a argc/argv-style API.

> > Note that if you're use Microsoft, no solution to this vexing issue is > > even possible. Even if Perl were to emulate fork(), you'd still be > > stuck, because Microsoft does not have a argc/argv-style API.